diff --git a/colrev/packages/files_dir/src/files_dir.py b/colrev/packages/files_dir/src/files_dir.py
index 2be696e3d..7f1da9a69 100644
--- a/colrev/packages/files_dir/src/files_dir.py
+++ b/colrev/packages/files_dir/src/files_dir.py
@@ -547,6 +547,10 @@ def _index_pdf(
         self.review_manager.logger.info(f" extract metadata from {file_path}")
         try:
             if not self.review_manager.settings.is_curated_masterdata_repo():
+                # TODO : skip cover page
+                # extract _get_coverpages in colrev/packages/remove_coverpage/src/remove_cover_page.py
+                # use get_colrev_pdf_id() with custom_page = 1 (for coverpages)
+
                 # retrieve_based_on_colrev_pdf_id
                 colrev_pdf_id = colrev.record.record.Record.get_colrev_pdf_id(
                     pdf_path=file_path_abs
diff --git a/colrev/record/record.py b/colrev/record/record.py
index f31eab750..fbb805798 100644
--- a/colrev/record/record.py
+++ b/colrev/record/record.py
@@ -616,10 +616,13 @@ def get_colrev_id(
     def get_colrev_pdf_id(
         cls,
         pdf_path: Path,
+        custom_page: int = 0,
     ) -> str:  # pragma: no cover
         """Generate the colrev_pdf_id"""
 
-        return colrev.record.record_identifier.get_colrev_pdf_id(pdf_path)
+        return colrev.record.record_identifier.get_colrev_pdf_id(
+            pdf_path, custom_page=custom_page
+        )
 
     def get_toc_key(self) -> str:
         """Get the record's toc-key"""
diff --git a/colrev/record/record_identifier.py b/colrev/record/record_identifier.py
index bec49b00a..f0ba0e278 100644
--- a/colrev/record/record_identifier.py
+++ b/colrev/record/record_identifier.py
@@ -192,11 +192,12 @@ def get_colrev_id(record: colrev.record.record.Record, *, assume_complete: bool)
     return srep
 
 
-def _get_colrev_pdf_id_cpid2(pdf_path: Path) -> str:
+def _get_colrev_pdf_id_cpid2(pdf_path: Path, custom_page: int) -> str:
     with tempfile.NamedTemporaryFile(suffix=".png") as temp_file:
         file_name = temp_file.name
         try:
             doc: pymupdf.Document = pymupdf.open(pdf_path)
+            # TODO : select custom_page
             page = next(iter(doc))  # get the first page
             pix = page.get_pixmap(dpi=200)
             pix.save(file_name)  # store image as a PNG
@@ -214,7 +215,9 @@ def _get_colrev_pdf_id_cpid2(pdf_path: Path) -> str:
             raise colrev_exceptions.PDFHashError(path=pdf_path) from exc
 
 
-def get_colrev_pdf_id(pdf_path: Path, *, cpid_version: str = "cpid2") -> str:
+def get_colrev_pdf_id(
+    pdf_path: Path, *, cpid_version: str = "cpid2", custom_page: int
+) -> str:
     """Get the PDF hash"""
 
     pdf_path = pdf_path.resolve()
@@ -223,7 +226,7 @@ def get_colrev_pdf_id(pdf_path: Path, *, cpid_version: str = "cpid2") -> str:
         raise colrev_exceptions.InvalidPDFException(path=pdf_path)
 
     if cpid_version == "cpid2":
-        return _get_colrev_pdf_id_cpid2(pdf_path)
+        return _get_colrev_pdf_id_cpid2(pdf_path, custom_page=custom_page)
 
     raise NotImplementedError